2025/04/10 by Iustin Surubaru, Bin Zhu, Surubaru, Iustin +1 · 5 citations
Chemistry · Earth and Planetary Sciences · Environmental Science · #Atmospheric Ozone and Climate #FOS: Physical sciences #High Energy Physics - Theory (hep-th) #Inorganic Fluorides and Related Compounds #Methane Hydrates and Related Phenomena
paper · pdf · doi:10.48550/arxiv.2504.07650
openalex publication_date 2025/04/10 · openalex created_date 2025/10/11 · openalex updated_date 2026/07/28
We study Carrollian amplitudes of massless scalars in (1+2) Minkowski space. Using the prescription recently shown by Alday et al. [JHEP 03 (2025) 158] originally designed for the AdS4 Witten diagrams, we show that AdS3 Witten diagrams in position space in the flat space limit reduce to Carrollian amplitudes. The flat space limit in the bulk is implemented by the Carrollian limit at the boundary. Focusing on four-point correlators with contact and exchange diagrams, we show that the Carrollian limit makes the universality of the bulk point singularity manifest upon performing analytic continuation to the Lorentzian signature of the boundary correlators. Unlike four-point Carrollian amplitudes in (1+3) dimensions, the (1+2) dimensional ones are non-distributional, having analytic properties simpler than the AdS correlators. We also observe for the first time a double copy structure of Carrollian amplitudes.